selling them secondhand on TM would probably get you close to 70% of the original price. sonos stuff holds its price
Ummm not if they no longer work, which Sonos says may happen with the legacy products after May 2020.
I also received the email, and nowhere does it say they may no longer work. The email says they won’t get updates, and neither will newer units which otherwise would have.
Here is the support article https://support.sonos.com/s/article/4786?language=en&et_rid=202342359&utm_campaign=lifecycleeosu_announce_184988_1497710&utm_medium=email&utm_source=owners_legacy_110690607&utm_content=copy-t2-readarticle_NZ
It’s going to be worthwhile keeping an eye on John MacFarlane’s twitter account - he is going to get up to speed with this initiative. @JohnLMacFarlane.